Sr. Staff Software Engineer- Fullstack

UKG•Atlanta, GA

8d•$145,600 - $209,300

About The Position

This Sr. Staff level role leads the technical strategy and execution for large-scale enterprise analytics applications built on modern web technologies. The applications transform complex benchmark datasets and workforce analytics into intuitive, high-performance user experiences for administrators and business leaders. As the most technically skilled front-end engineer on the team, this person drives architectural direction, mentors engineers, and ensures the applications are accessible, performant, and delightful to use. The role includes close collaboration with backend data platform teams, Data Science teams, and UX designers to translate analytical insights into actionable visual interfaces.

Requirements

8+ years of software engineering experience, including 3+ years in lead or staff-level
Java or C# Development experience required
Expert-level proficiency in modern JavaScript/TypeScript, React, and front-end build tooling (Vite, Webpack, etc.)
Strong data visualization skills using D3.js, Recharts, or similar libraries to create interactive charts and dashboards
Production experience with modern front-end architecture patterns including component design systems, micro-frontends, and mono repo structures
Proven ability to optimize application performance (Core Web Vitals, bundle optimization, lazy loading strategies)
Strong understanding of accessibility standards (WCAG 2.1), semantic HTML, and inclusive design principles
Experience designing security-conscious front-end applications with proper handling of authentication, authorization, and sensitive data display
Leverage AI coding agents such as Claude Code, GitHub Copilot, or Cursor to accelerate front-end development, including generating production-ready components, refactoring existing codebases, debugging complex UI issues, and improving engineering throughput while maintaining code quality, security, and design system compliance
Ability to break ambiguous product requirements into structured technical designs and actionable implementation plans
Demonstrated ability to mentor engineers and influence technical direction across front-end and full-stack teams
Strong experience integrating with backend APIs, data pipelines, and real-time data sources

Nice To Haves

Experience architecting enterprise design systems and component libraries used across multiple products
Experience with advanced data visualization techniques for large datasets (virtual scrolling, canvas rendering, WebGL)
Experience building real-time dashboards using WebSockets, Server-Sent Events, or similar streaming technologies
Experience with modern CSS architectures (CSS-in-JS, Tailwind CSS, CSS Modules) and responsive design patterns
Experience implementing white-label/multi-tenant UI architectures with theme customization
Experience with Next.js, Remix, or similar meta-frameworks for server-side rendering and hybrid applications
Experience working in regulated environments with strong data compliance, audit requirements, and privacy-preserving UI patterns
Experience with micro-frontend architectures (Module Federation, single-spa, etc.) for large-scale applications
Experience building AI-powered user interfaces, including chat interfaces, natural language interactions, or LLM-generated content display
Experience mentoring senior front-end engineers, design engineers, or full-stack engineers
Experience defining front-end strategy across multiple teams, including developer experience, tooling, and quality standards

Responsibilities

Architect and evolve modern, scalable front-end applications using React, TypeScript, Next.js, and enterprise component libraries
Lead architecture reviews for state management, data visualization strategies, performance optimization, and front-end infrastructure
Define and enforce front-end coding standards, design patterns, and technical best practices across multiple teams
Drive strategic decisions on UI frameworks, build systems, testing infrastructure, and developer tooling
Introduce new front-end technologies and frameworks to support long-term scalability, maintainability, and developer experience
Build high-performance, responsive web applications that visualize large-scale workforce benchmarks and analytics
Design and implement sophisticated data visualization interfaces using libraries like D3.js, Recharts, or similar frameworks
Create scalable component architectures and design systems that support white-labeling and multi-tenant requirements
Integrate with RESTful and GraphQL APIs, handling real-time data updates, optimistic UI patterns, and complex state management
Implement client-side data aggregation, filtering, and transformation to support interactive analytics experiences
Engineer privacy-first UI components that properly mask PII, enforce role-based access controls, and handle sensitive HCM data
Implement client-side data redaction, anonymization displays, and audit logging for compliance requirements
Build secure authentication/authorization flows and session management patterns
Ensure WCAG 2.1 AA accessibility compliance across all interfaces
Partner with Data Science teams to visualize statistical models, quantitative insights, and AI-generated summaries
Collaborate with backend engineers to define optimal API contracts, data shapes, and performance characteristics
Work with UX designers to translate wireframes and design systems into production-ready, pixel-perfect implementations
Translate product requirements and analytical needs into technical designs and execution plans
Optimize application performance including bundle sizes, lazy loading, code splitting, and runtime performance
Implement comprehensive testing strategies (unit, integration, E2E, visual regression, accessibility)
Establish observability and monitoring for front-end errors, performance metrics, and user experience analytics
Troubleshoot complex issues involving browser compatibility, rendering performance, or API integration bottlenecks
Mentor front-end and full-stack engineers through design reviews, pair programming, and technical guidance
Influence technical direction across multiple product teams and establish front-end best practices organization-wide
Lead by example with high-quality code contributions and architectural decision-making